whats the diffrence?

71dodge

New Member
Apr 24, 2010
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inverness FL
ok i was going to put a 3mm crank in my bike but i think im not gonna lol. whats the diffrence between a stock crank and a 3mm? also what would be the disavantages of putting a stock replacment crank back in verus a 3mm? this was the original plan

3mm crnak new seals bearings for the bottom end then a mild trail port and polish and bore for the top.

but what if i did this

stock replacement crank new seals bearings mild trail port and polish and bore

whats the diffrence? also i will be getting a F7 pipe bigger carb (30mm) V3 reeds and cage and jets.
 
Longer stroke, little more umph. how much? Don't know my ass dyno is not working at the moment. I know someone on here will know HP numbers and what not.
 
the 3mm stroker takes the stroke from 57mm to 60mm. this should give you more low end torque, a word of caution is if you have your cylinder ported for a stock replacement crank, then you may not be able to use that jug for the 3mm stroker since the port timing will be different